In short: One of the most incredible running events in the universeIn full: Thank you to Dr Rob and everyone / anyone else in the Trionium organisation for staging another magnificent start to the year. And to the marshals, St John's Ambulance and all the runners.

This was my 3rd Knacker Cracker and a new PB - only because it's a new course and it's the only 12k I've ever raced. The extra half a hill was nasty, though I liked the downhill bit in the middle.

Came a cropper hurtling down the muddy steps yet picked myself up and kept going. If anyone's unfamiliar with this race, check out the race website for the photos - now that it's a mass start, albeit from the bottom of the hill this year, the sight of 200 runners in various states of fancy dress marauding down the hill must surprise a few new year dog walkers.

The camaraderie around the course and the food and mementoes at the end make this a truly memorable race.

In short: wouldnt miss this for anything !!In full: some are mad to do this VERY tough and hilly race and some are even madder to come back and do it again... so having been told by my doctor i have a herniated disc and to rest there was no way i should have thought about running this but somehow on new years day morning i found myself liling up for my 5th knacker cracker!! yes this race is so good you just cant miss it...As always dr.rob used his thought of what goes up must come down but then go up even further and so the extra climb of the zig zag road was hard work but it as great and as in all the previous years very well organised and marshalled.My only moan was the loss of the moto britains hardest 10k maybe it should now be britains hardest 12k !! well done rob and team will be back again next year.Date of review: January 21, 2012

In short: First class race. Fantastic scenery, marshalls excellent. Great way to start the year!In full: First time doing Knacker Cracker and it was so tough. Enjoyed every moment and the support from the crowds at the lookout added to a very special race.Date of review: January 4, 2012

In short: Most challenging 12k for some time which might be explained by the hills, steps, mud and a very late night before - great start to the New Year and uplifting experienceDate of review: January 3, 2012

In short: Best fun everIn full: Firstly, a big no huge thank you to the marshals.Great course, liked the ZigZag element. Hats off to the guy who ran in bare feet. Great mug (no doubt will cause more comments in the kitchen at work!) and top.Will be back for more next year - Well done Rob and coDate of review: January 3, 2012